schraubstadter



(No Model.) 2 sheetssheet I C. SCHRAUBSTADTER, Jr. & C. R. SCHILLING.MACHINE IoR DRESSING PRINTERS BLOCKS.

No. 586,917. Patented July 20, 1897.

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2 Sheets-Sheet 2. C. SGHRAUBSTADTER,J1-. 8u G1R. SGHILLING.

(No Model.)

MAGHINBTOR DRESSING PRENTERS BLOCKS.

PatentedvJuly 20, 1897.

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UNITED STATES PATENT EErcE.

'CARL SOHRAUBSTADTER, JR., AND CHARLES R. SOHILLING, OF ST. LOUIS,

MISSOURI, ASSIGNORS TO THE VESTERN ENGRAVERS or., SAME PLAGE.

SUPPLY COMPANY,

MACHINE FOR DRESSING PRINTERS BLOCKS..

SPECIFICATION forming` part of Letters .'Eatent No. 586,917, dated July20, 1897. Application filed December 2l, 1896. Serial No. 616,454. (Nomodel.)

To a/ZZ whom t may concern.-

Be it known that we, CARL SCHRAUBSTAD# TEE, Jr. and CHARLES R.ScHrLLINc, citizens of the United States, residing at the city of St.Louis, in the State of Missouri, have i11- vented acertain new anduseful Improvement in Machines for Dressing Printers Blocks, of whichthe following is a full, clear, and exact description, reference beinghad to the accompanying drawings, forminga part of this Specification. p

Our invention relates to an improved ma chine for trimming or dressingprinters leads,

^ such as linotype-slugs or other blocks; and

our invention consists in features of novelty hereinafter fullydescribed and claimed.

Figure I is a top or plan view of our improved machine, Fig. II is avertical section taken 011 line Il II, Fig. I. Fig. vIII is a detailsection taken on line III III, Fig. I. Fig. IV is a top or plan view ofthe slide. Fig. V is an end view of the slide. Fig. VI is a top view ofthe stop`plate. Fig. VII is a top view of the clamp-plate. Fig. VIII isa transverse section taken on line VIII VIII, Fig. VI. Fig. IX is adetail View, part `in vertical section and part in elevation, showingpart of the slide and ,showing 'the nut having a helical thread fortightening the clamp-plate. Fig. X is a bottom view of the nut.

Referring to the drawings, 1 `represents a suitable table connected by ahinge 2 to a base 3, supported by suitable legs. (Not shown.) 4represents a mandrel supported by the base 3 in suitable j ournal-boXes5, located beneath the table. The mandrel is provided with tight andloose pulleys 6 and-a saw 7, the latter working upwardly through aslotjS made. in the table 1. vThe front part of thetable rests upon theupper end of a set-screw 9, connected by a bracket 10 to the front edgeof the base 3. By adjusting the set-screw the table may be raised orlowered with relation to the saw, so as to leave more or less of the sawexposed above the table to regulate the depthv of the cut made by thesaw.

1l represents a longitudinal groove made in the upper face of the tablevto receive a longitudinal projection 12 on the under face of a slide13. The shape of the slide is illusing arm 15, that receives astop-plate 26.

16 represents a longitudinal inclined rack, l

secured to the slide by means of screws 17 or otherwise. The teeth ofthis rack are of elliptical form, so as to present bearing sides, whichare arranged in the arc of a circle, forming a segmental thread, intowhich4 meshes a helical thread on the lower face of the knob or nut 18,movably mounted on a stem 19, that is tapped into a projection 20,formed on the L-shaped clamp-plate 21. Fig.' I, the stem 19 is locatedto one side of the rack 16. The knob or nut 18 is capable of beingraised vertically, as shown by dotted lines in Fig. IX, so as to bedisengaged from the rack 16, and by disengaging the nut from the rackthe slide can be moved quickly in either direction, and when the arm2l2L of the clamp-plate ismoved up against the slugs 22, after thelatter are placed in position, the nut is dropped into engagement withthe rack, and by turning the nut the clamp-plate is .drawn by forceagainst the slugs, holding them firmly in place between the arm 14 ofthe slide and the arm of the clamp-plate. The longitudinal bar of theclamp-plate ts in a groove 23`in the under side of the slide V(see Fig.V) and is held therein by screws 24,

tapped intothe slide, and the heads of which lapv into a rabbet 25, cutin the adjacent corner of the clamp-plate, as seen in Figs. III and V..By making this connection between the clamp-plate andthe slide themovement of the former with respect to the latter in securing the slugsin place is not interfered with,while theclamp-plate and slide areconnected together, so that if the latter is removed from the table, asit maybe by simply lifting it off, the former will be held in itsposition in groove 23;

As seen inA 26 represents a stop-plate held to the table 95 1 by meansof a groove 2Gat on its under side, fitting over a rib 132L on theslide, and by means of a post 27, projecting upwardly from the slideand'fltting in a slot 28 made in the stop-plate. The post 27 issurrounded by a IOO line.

sleeve 27, secured by a set-screw to the post, and is provided withathumb-nut 29, and by tightening this nut the sleeve bears upon thestop-plate and the stop-plate is held to its adjustment.

30 represents ears formed on the upper surface of the stop-plate, (seeFigs. I and VL) between which is, hinged a gage 3l, having teeth 32,adapted to engage a toothed pin 33, extending upwardly from the slide.Each tooth represents apica em or .10G inch in measurement, so thatthirteen teeth, for instance, would represent the distance of thirteenems,the length of au ordinary newspaper- In adjusting the stop-plate thegage 3l is thrown up out of engagement with the pin and the stop-plateis moved in or out to the desired point, which is indicated by theproper notch in the gage registering with the pin. lVhen the stop-platehas been moved toits desired position, the thumb-nut 29 is tightened andthe stop-plate thus held to its adjustment.

In using the apparatus the stop-plate is first adjusted to properposition-as, for instance, if it is desired to cut the slugs so thatthey will be thirteen ems in length the stopplate is set at a pointthirteen ems back of the cutting-line of the saw 7. The slugs are thenplaced up against the arm 14: of the slide with their ends abuttingagainst the stopplate. When the slugs have all been placed in position,a straight-edge 3a is moved up against their outer ends, so as to assurethe abutment of all of the slugs against the stopplate, thisstraight-edge resting on the table l, and held there by screws 35,passing through a tongue fitting in a groo\f'e 3G in the table. The nextthing to be done is to clamp the slugs so that they will be held firmlybetween the slide and the clamp-plate. This is done by lifting the nutIS out of engagement with the rack 1G and pulling the clamp-plate towardthe slugs until the arm of the clampplate comes up against the slugs.The nut is then dropped into engagement with the rack, and by turning itthe clamp-plate is drawn with force up against the slugs, thus firmlyclamping the latter in place. It is evident that the entire movement ofthe clamp-plate might be effected by turning the nutV withoutdisengaging it from the rack, but time is saved, especially where aconsiderable movement is to be imparted to the clamp-plate, byliftingthe nut outof engagement with the rack until the end of the clampplatecomes up against the slugs. lVhen the slugs have been clamped intoplace, the slide and parts carried by it are moved toward the saw andthe ends of the slugs are removed by the saw.

For tabular printing it is necessary to have grooves made in the slugscrosswise of their length to receive the rule. To facilitate this work,we hinge a straight-edge 37 to the table at 38, the front edge of thisstraight-edge being, when the straight-edge is down, on a line uponwhich the saw 7 cuts, as shown in Fig. l. In making these grooves forthe rule the slugs are placed in position, but before being locked bythe clamp-plate they are set out by moving the stop-plate until thepoint where the groove is to be made registers with the face of thestraight-edge 37. The stop-plate is then tightened by the nut 29 and theslugs are turned over with their faces down on the table l. 'lheclamp-plate is then tightened, and the front edge of the table is raisedby means of the set-screw until there is less of the saw 7 exposed abovethe top of the table than equals the thickness of the slugs or untilthere is only that part of the saw left above the table that will cut agroove of the depth desired in the slugs. The slide, with its parts, isthen moved to carry the slugs across the saw, and it is then moved back,and when the slugs are removed they will, as a whole, have a groove toreceive the brass rule.

In printing it is found desirable, for the purpose of providing room fora cut at one end of the printed matter, to cut the slugs ot' less lengththan the width of the column, and this space occupied by the eut isfrequently of less width than any given number of em sas, for instance,it may be five and one-half ems or other number of ems with a fraction.As the stop-plate 2G can only be set by the gage 3l to a certain numberot ems, we provide our machine with a stop-block 40 on the slide, whichis so arranged that the projection etl on stop-plate 2G exactly engageswith it when the stop-plate 2G is brought back to the furthermost limit.Thus in the form of the saw usually constructed by us the greatest widthis thirty ems, and when the stop-plate is moved backward so as to engagein the last notch of the gage 3l the surfaces of 40 and-ll will touch.It is obvious that if the stopplate 26 is now moved forward and a cut isplaced between the surfaces Ll0 and 4l, so as to clamp the cut tightly,the saw will cut an amount off the ends of the slugs equal to the widthof the cut clamped. Thus if the slugs were thirty ems long and the cutwas eight ems long the resulting lines would be twentytwo ems long, andthe cut, together with the slugs7 would exactly fill out a column thirtycms wide. In order to make this plan available for other column widths,we furnish pins 39. These pins are provided with a shoulder to lit inthe block 40, the amount projecting being of such length as will makethe distance between the full width when the surfaces 40 and 4l touchand the measure desired. Thus if, when the surfaces 40 and il touch, themeasure of the gage is thirty ems and if the measure desired is thirteenand one-halt' ems the pin would have to be sixteen and one-half emslong. lVhen this pin isinserted, cuts clamped between its front surfaceL12 and the projection Lll on stop-plate 2G will, when the slugs aresawed off, leave the exact amount requisite to make such cuts IOO IIO

and the remainder of the slugs ll a thirteen and one-half em column.

We claim as our inventionl. A machine for dressing printers blocks,comprising a slide having a forwardly-projecting clamp-arm, a'rearwardly-projecting arm, and a rack, an L-shaped clamp-plate havingsliding connection With the slide be` neath the rack,'a stem secured tothe clampplate adjacent to the rack, a knob having a helical thread forengaging the rack to adjust the clamp-plate With relation to the clamp-yfor engaging the rack to adjust the clampplate with relation to theclamp-arm, and

- an adjustable stop-plate located on the rear- Wardly-projecting arm;substantially as described.

3. A machine for dressing printers blocks, comprising a Vslide having atoothpin, a for- Wardly-projecting clamp-arm, a rearwardlyprojectingarm, and a rack, an L-shaped clamp-plate having sliding connection withthe slide beneath the rack, a stem secured to the clamp-plate adjacentto the rack, a knob having a helical thread for engaging the rack toadjust the clamp-plate With relation to the clamp-arm, an adjustablestop-plate located on the rearwardly-projecting arm, and a gage hingedto the stop-plate, having teeth With Which the toothed pin engages;substantially as described.

4c. A machine for dressing printers blocks, comprising a slide having aforwardly-pro- 'ectinff clam -arm a rearWardl ro'ectinOMV J s s arm,anda rack, an Lshaped clamp-plate having sliding connection with theslide beplate adjacent to kthe rack, a knob having a helical thread forengaging the rack to adj ust the clamp-platewith relation to theclamparm, and an adjustable stop-plate located on the rearwardly-projectin g arm, and an adj u'stable straightedge5 substantially asdescribed.

5. A machine for dressing printers blocks, comprising a slide having aforwardly-projecting clamp-arm, a rearwardly-projecting arm, and a rack,an L-shaped clamp-plate having sliding connection with the slide beneaththe rack, a stem secured to the clampplate adjacent to the rack, a knobhaving a helical thread for engaging the rack to adjust the clamp-platewith relation to the clamparm, 'an adjustable stop-plate located on therearwardly-projecting arm, and the hinged straight-edge; substantiallyas described.

G. A machine for dressing printers blocks, comprising a slide having aforwardly-proj ecting clamp-arm, and a rearwardly-projecting arm, anL-shaped clamp-platehaving sliding connection With the slide, means foradjusting the clamp-plate With relation to the clamp-arm, and anadjustable stop-plate located on the rearwardly-projecting arm;substantially as described.

7. A machine for dressing printers blocks, comprising a slide having atooth-pin, a forwardly-projecting clamp-arm, and a rearwardly-projectingarm, an L-shaped clampplate having sliding connection With the slide,means for adjusting the clamp-plate with relation to the clamp-arm, anadjustable stopplate located on the rearwardly-projecting arm and a gagehinged to the stop-plate having teeth with which the toothed pinengages; substantially as described.

In presence of E. S. KNIGHT, STANLEY SroNER.

neath the rack, a'stem secured to the clamp-

